21201608

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17551}}^1$

素因数の和:17708

約数の個数: 16

約数和(自身を含む): 40018560

約数和(自身を除く): 18816952

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17551, 35102, 70204, 140408, 2650201, 5300402, 10600804, 21201608]

約数ペア:

[(1, 21201608), (2, 10600804), (4, 5300402), (8, 2650201), (151, 140408), (302, 70204), (604, 35102), (1208, 17551)]